144505147 has 2 divisors, whose sum is σ = 144505148. Its totient is φ = 144505146.

The previous prime is 144505129. The next prime is 144505171. The reversal of 144505147 is 741505441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144505147 - 2⁷ = 144505019 is a prime.

It is not a weakly prime, because it can be changed into another prime (144505187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72252573 + 72252574.

It is an arithmetic number, because the mean of its divisors is an integer number (72252574).

Almost surely, 2^144505147 is an apocalyptic number.

144505147 is a deficient number, since it is larger than the sum of its proper divisors (1).

144505147 is an equidigital number, since it uses as much as digits as its factorization.

144505147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 144505147 is about 12021.0293652416. The cubic root of 144505147 is about 524.7604615478.

The spelling of 144505147 in words is "one hundred forty-four million, five hundred five thousand, one hundred forty-seven".